/* 【新增】定义全局字体 */
@font-face {
    font-family: 'Maple Mono Normal NF CN';
    /* 路径相对于此CSS文件，即从 'css' 目录返回上一级到 'web'，再进入 'fonts' 目录 */
    src: url('../fonts/MapleMonoNormal-NF-CN-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap; /* 优化字体加载体验 */
}

/* --- CSS 变量，用于主题化 --- */
:root {
    --bg-color: #f0f2f5;
    --text-color: #333;
    --panel-bg: rgba(0, 0, 0, 0.7);
    --panel-text: white;
    --panel-header: #FB6104;
    --panel-time: #DDF4C4;
    --hero-bg: #DDF4C4;
    --content-bg: white;
    --header-text: #1a1a1a;
    --header-border: #eee;
    --header-main-border: #005984;
    --code-bg: #eee;
    --link-color: #005984;
    --button-bg: rgba(0, 0, 0, 0.1);
    --button-hover-bg: rgba(0, 0, 0, 0.2);
    --button-active-bg: #005984;
    --button-active-text: white;
}

body.dark-mode {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --panel-bg: rgba(255, 255, 255, 0.1);
    --panel-text: #e0e0e0;
    --panel-header: #ff8c42;
    --panel-time: #a5d6a7;
    --hero-bg: #001a24;
    --content-bg: #1e1e1e;
    --header-text: #f5f5f5;
    --header-border: #333;
    --header-main-border: #ff8c42;
    --code-bg: #333;
    --link-color: #ff8c42;
    --button-bg: rgba(255, 255, 255, 0.1);
    --button-hover-bg: rgba(255, 255, 255, 0.2);
    --button-active-bg: #ff8c42;
    --button-active-text: #121212;
}

/* --- 【确认】基础与布局，应用全局字体 (此规则已正确引用上面定义的字体名称) --- */
body, html, .control-btn {
    margin: 0;
    padding: 0;
    font-family: 'Maple Mono Normal NF CN', 'Courier New', monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    scroll-behavior: smooth;
    transition: background-color 0.3s, color 0.3s;
}

/* --- UI 控件 --- */
#ui-controls {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
}

#planet-focus-controls, #settings-controls {
    display: flex;
    gap: 5px;
    background: var(--panel-bg);
    padding: 5px;
    border-radius: 8px;
    pointer-events: auto;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px); /* For Safari */
}

.control-btn {
    background-color: var(--button-bg);
    color: var(--panel-text);
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    transition: background-color 0.2s;
    /* 修复关于我们按钮文本对齐 - 添加以下样式 */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 32px; /* 使用固定高度以确保所有按钮一致 */
    box-sizing: border-box; /* 确保内边距包含在高度内 */
}

.control-btn:hover {
    background-color: var(--button-hover-bg);
}

.control-btn.active {
    background-color: var(--button-active-bg);
    color: var(--button-active-text);
    font-weight: bold;
}

/* 【新增】语言切换下拉框样式 */
.language-dropdown {
    position: relative;
    display: inline-block;
}

.language-toggle-btn {
    border-radius: 8px; /* 与其他按钮不同的圆角 */
    gap: 5px; /* 为下拉箭头提供间距 */
}

.language-toggle-btn:hover {
    background-color: var(--button-hover-bg);
}

.language-toggle-btn.active {
    background-color: var(--button-active-bg);
    color: var(--button-active-text);
}

.language-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--panel-bg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    min-width: 80px;
    z-index: 1000;
    margin-top: 5px;
}

.language-dropdown-content.show {
    display: block;
}

.language-option {
    display: block;
    width: 100%;
    padding: 8px 12px;
    background: none;
    border: none;
    color: var(--panel-text);
    font-family: 'Maple Mono Normal NF CN', 'Courier New', monospace;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: left;
}

.language-option:hover {
    background-color: #FB6104;
    color: white;
}

.language-option:first-child {
    border-radius: 8px 8px 0 0;
}

.language-option:last-child {
    border-radius: 0 0 8px 8px;
}

/* --- 横幅区域 --- */
#hero-banner {
    height: 75vh;
    width: 100%;
    background-color: var(--hero-bg);
    position: relative;
    overflow: hidden;
    cursor: grab;
    transition: background-color 0.3s;
}

#hero-banner:active {
    cursor: grabbing;
}

/* --- 实时信息显示区域 --- */
#info-panel {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: var(--panel-bg);
    color: var(--panel-text);
    padding: 15px;
    border-radius: 8px;
    font-size: 11px;
    line-height: 1.6;
    max-width: 450px;
    pointer-events: none;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px); /* For Safari */
    transition: background-color 0.3s, color 0.3s;
}

#info-panel h3 {
    margin: 0 0 10px 0;
    color: var(--panel-header);
    font-size: 14px;
}

#info-panel .time-display {
    color: var(--panel-time);
    font-weight: bold;
    margin-bottom: 10px;
}

#info-panel .planet-info {
    margin: 5px 0;
    font-size: 10px;
}

/* --- 内容区域 - 博客样式调整 --- */
#content-section {
    padding: 40px 15%;
    line-height: 1.8;
    background-color: var(--content-bg);
    transition: background-color 0.3s;
    max-width: 1200px; /* 限制内容宽度 */
    margin: 0 auto; /* 居中显示 */
    margin-top: 50px; /* 为固定导航栏留出空间 */
}

#content-section h1, #content-section h2, #content-section h3, #content-section h4 {
    color: var(--header-text);
    border-bottom: 2px solid var(--header-border);
    padding-bottom: 10px;
    margin-bottom: 20px;
    margin-top: 40px;
}

#content-section h1 { font-size: 2.2em; border-bottom: 3px solid var(--header-main-border); }
#content-section h2 { font-size: 1.8em; }
#content-section h3 { font-size: 1.5em; border-bottom-style: dashed; }
#content-section h4 { font-size: 1.2em; border-bottom: 1px solid var(--header-border); }

#content-section p, #content-section ul {
    font-size: 1.1em;
    margin-bottom: 20px;
}

#content-section ul { padding-left: 25px; }
#content-section li { margin-bottom: 10px; }

#content-section code {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
}

/* --- 滚动提示 --- */
.scroll-down-indicator {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-color);
    text-align: center;
    font-size: 0.8rem;
    animation: bounce 2s infinite;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

.scroll-down-indicator.visible {
    opacity: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

/* 【新增】下载按钮和登录区域的样式，与现有 control-btn 保持一致 */
#content-section .control-btn {
    pointer-events: auto; /* 确保按钮可点击 */
    margin: 5px; /* 按钮间距 */
}

#login-registration-section {
    padding: 30px;
    background-color: var(--content-bg); /* 与内容区背景一致 */
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); /* 轻微阴影 */
}

#login-registration-section h3, #login-registration-section p {
    color: var(--header-text);
}

/* --- 新增: 登录/注册表单样式 --- */
.auth-container {
    background-color: var(--content-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    max-width: 400px;
    margin: 40px auto;
    border: 1px solid var(--header-border);
}

.dark-mode .auth-container {
    box-shadow: 0 5px 20px rgba(255,255,255,0.1);
}

.auth-form-tabs {
    display: flex;
    margin-bottom: 20px;
}

.auth-tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: 16px;
    font-family: inherit;
}

.auth-tab-btn.active {
    border-bottom-color: var(--link-color);
    font-weight: bold;
}

.auth-form {
    display: none;
    flex-direction: column;
    gap: 15px;
}

.auth-form.active {
    display: flex;
}

.auth-form input {
    padding: 12px;
    border-radius: 5px;
    border: 1px solid var(--header-border);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    font-family: inherit;
}

.auth-form .submit-btn {
    pointer-events: auto;
    background-color: var(--button-active-bg);
    color: var(--button-active-text);
    font-size: 16px;
    padding: 12px;
}

.oauth-divider {
    text-align: center;
    margin: 20px 0;
    color: var(--gray-color);
    font-size: 12px;
}

.oauth-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.oauth-buttons .oauth-login-btn {
    pointer-events: auto;
    flex-grow: 1;
}

/* --- 新增: 用户信息和管理员面板样式 --- */
#user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

#username-display {
    font-weight: bold;
}

#logout-btn {
    padding: 5px 10px;
    font-size: 12px;
}

#admin-panel {
    background-color: var(--content-bg);
    border: 1px solid var(--header-border);
    padding: 20px;
    border-radius: 8px;
}

/* 【修改】管理员表单组样式 - 改为垂直布局 */
.admin-form-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.admin-form-row {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.admin-form-group input[type="number"] {
    width: 80px;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid var(--header-border);
    background-color: var(--bg-color);
    color: var(--text-color);
}

.permissions-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.permissions-section label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.permissions-section label:hover {
    background-color: var(--button-bg);
}

.permissions-section input[type="checkbox"] {
    margin: 0;
}

#invite-code-list {
    list-style: none;
    padding: 0;
    max-height: 300px;
    overflow-y: auto;
}

#invite-code-list li {
    background-color: var(--bg-color);
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#invite-code-list code {
    font-weight: bold;
}

#invite-code-list .code-status {
    font-size: 12px;
    color: var(--gray-color);
}

#invite-code-list .delete-code-btn {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
}

/* --- 修改下载按钮样式 --- */
.download-btn {
    pointer-events: auto;
    background-color: var(--button-active-bg);
    color: var(--button-active-text);
    font-size: 16px;
    padding: 10px 20px;
    margin: 5px;
    text-decoration: none;
}